420434332431 has 16 divisors (see below), whose sum is σ = 562864619520. Its totient is φ = 279147008000.

The previous prime is 420434332411. The next prime is 420434332481. The reversal of 420434332431 is 134233434024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 420434332431 - 2⁵ = 420434332399 is a prime.

It is a super-2 number, since 2×420434332431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420434332392 and 420434332401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420434332411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11547151 + ... + 11583503.

It is an arithmetic number, because the mean of its divisors is an integer number (35179038720).

Almost surely, 2^420434332431 is an apocalyptic number.

420434332431 is a deficient number, since it is larger than the sum of its proper divisors (142430287089).

420434332431 is a wasteful number, since it uses less digits than its factorization.

420434332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51966.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 420434332431 its reverse (134233434024), we get a palindrome (554667766455).

The spelling of 420434332431 in words is "four hundred twenty billion, four hundred thirty-four million, three hundred thirty-two thousand, four hundred thirty-one".